On Wed, Aug 06, 2014 at 12:21:59PM +0200, Martin Steigerwald wrote: > It basically happened on about the first heavy write I/O occasion after > the BTRFS trees filled the complete device: > > I am now balancing the trees down to lower sizes manually with > > btrfs balance start -dusage=10 /home > > btrfs balance start -musage=10 /home
Note that balance has nothing to do with balancing the metadata trees. The tree structures are automatically balanced as part of their normal operation. A "btrfs balance start" is a much higher-level operation. It's called balance because the overall effect is to balance the data usage evenly across multiple devices. (Actually, to balance the available space evenly). Also note that the data part isn't tree-structured, so referring to "balancing the trees" with a -d flag is doubly misleading. :) Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- You know... I'm sure this code would seem a lot better if I --- never tried running it.
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